|
|
I drove one for a couple of years that had sticking seals. ATF was effective in getting it cranked (got pretty good at doing it fairly quickly) & don't remember waiting overnight. I always assumed that it just supplied enough extra oil to get the compression up enough to crank & run, after which the seal(s) would loosen up enough for the engine to start & run normally for a few months/weeks/days.
Charlie
Ed Anderson wrote:
Greg, using ATF is a “common” method of freeing up stuck Apex seals. When left sitting for long periods, people who owned older RX-7s would go out one morning and attempt to start their autos. They would hit the ignition and the engine would wiz over with no compression. A number decided that the *&@) engine was shot and practically give a way the auto and engine.
Pull a spark plug from each chamber, pour in some ATF, Marvel Mystery oil, WD-40 or your favorite light weight oil , let it sit a while (over night seemed to be the most common waiting period) and the next morning – Zooooommmmmmm!! Compression and a running engine.
So for old engine or engines with worn or stuck seals, a fluid like ATF may help compression at lower rpm and assist in starting, I doubt very seriously they would do anything for you at higher rpm. But, someone like Lynn could enlighten us all about this “urban myth”.
Ed
Ed Anderson
Rv-6A N494BW Rotary Powered
Matthews, NC
eanderson@carolina.rr.com
http://www.andersonee.com <http://www.andersonee.com/>
http://members.cox.net/rogersda/rotary/configs.htm#N494BW <http://members.cox.net/rogersda/rotary/configs.htm>
http://www.dmack.net/mazda/index.html
------------------------------------------------------------------------
*From:* Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] *On Behalf Of *Greg Ward
*Sent:* Friday, December 19, 2008 8:54 PM
*To:* Rotary motors in aircraft
*Subject:* [FlyRotary] Re: engine preservation
**I just read a great article on running ATF through the Rotary, supposedly to loosen up the apex seals, etc. (high detergent level). Raves on about having done this multiple times in many engines, and supposedly power increases of up to 20% +. Anybody done this? Results?**
**Thanks;**
**Greg Ward**
**Lancair 20B N178RG in Progress**
----- Original Message -----
*From:* John Downing <mailto:downing.j@sbcglobal.net>
*To:* Rotary motors in aircraft <mailto:flyrotary@lancaironline.net>
*Sent:* Friday, December 19, 2008 5:35 PM
*Subject:* [FlyRotary] engine preservation
Lynn, thanks for the heads up on the engine. Even though it is in
a heated garage with hot water heat in the floor, I pulled the
plugs and put oil in each rotor cavity and rolled it over 8
revolutions and duct taped the exhaust. That should even oil the
muffler bearings when I start it again. JohnD
__________ Information from ESET NOD32 Antivirus, version of virus signature database 3267 (20080714) __________
The message was checked by ESET NOD32 Antivirus.
http://www.eset.com
------------------------------------------------------------------------
No virus found in this incoming message.
Checked by AVG - http://www.avg.com Version: 8.0.176 / Virus Database: 270.9.19/1857 - Release Date: 12/19/2008 10:09 AM
|
|